Security Warnings

Can you help. I keep getting Security warning on my lap top and I don't know what to do because i don't have a clue about this sort of thing. I got quite a few yesterday don't remember the name, I tried to follow instructions but then i got a message fom windows saying it could be a false company. Today a window pops up from vista antivirus 2008 saying my laptop is infected with spyware harmful and malicious software detected, Backdoor win 32/NT Root high, Backdoor win 32sivuxa High, Trojan.caiijing high. I have symantec security is this sufficiant, do I need to do something else, or ignore the messages.

Sounds like you have what the Malware-fighting "community" calls a "Rogue"
program !? Best to start, and hopefully end, with running a "Full Scan" of the
FREE "MalwareBytes' Anti-Malware", best downloaded fromwww.malwarebytes.org/mbam.php ; just click the green "Download" button to start
the "process" . After Installation, make sure you "Update" it PRIOR to running
its "Full Scan" .

"Symantec security" is NOT that good; you would be better off using the program
I just mentioned, along with "SUPERAntiSpyware" from www.superantispyware.com
for your antiSPYWARE/antiTROJAN protection . For antiVIRUS protection, I
recommend the FREE Avast Home Edition ( www.avast.com ) with more SPECIFIC
Info at www.avast.com/eng/avast_4_home.html .
IF you decide to "remove" the Symantec "Security", you will need to run its
"Removal Tool" available at several Sites PRIOR to "Installing" any "New"
antiVIRUS program .